Sony RDR-VX521 - Page 103

7-7
TURN THE VCR
POWER ON AND
INSERT A TAPE
PRESS EJECT BUTTON
CASSETTE LOADING
MECHANISM
DOES NOT OPERATE
TAPE DETECTED
CST IN MODE
IC601-87:HIGH(5V)
CHANGE IC601
CHECK
START SENSOR (S601)
IC601
CHECK
DM B
+
LINE
CHANGE IC610
NO NO
NO
YES
IC601-59:LOW(0V)
IC601-58:HIGH(5V)
IC601-59:HIGH(5V)
IC601-58:LOW(0V)
CHECK
CASSETT LOADING
MECHANISM
YES
YES
NO
CN604 8pin 12V?
YES
NO
YES
(VCR Section)